HUB ASSEMBLY

TM 55-1740-200-14

4-459. FRAME AND BRACKETS ASSEMBLY.

c. Replace differential as a unit if any damage to

gears, bearings, or shafts is evident.

4-460. REPAIR. Refer to paragraph 4-197 for inspec-

tion and repair the frame and brackets assembly in

d. Reassemble in accordance with paragraph 4-606.

accordance with the following procedures. (See figure

4-49.)

4-457. HUB ASSEMBLY.

a. Replace all cracked, broken, or worn components of

the spring assembly.

4-458. REPAIR. Refer to paragraph 4-194 for inspec-

b. Weld all broken or cracked angles, brackets, and

tion and repair the hub assembly in accordance with the

beams.

following procedures. (See figure 4-47.)

c. Replace all missing attaching hardware.

a. Replace damaged or twisted axle shaft.

d. Replace nonrepairable parts.

e. Reassemble in accordance with paragraph 4618.

b. Remove nicks and scores from bearing surfaces with

crocus cloth.

4-461. LUBRICATION.

c. Replace all worn or damaged bushings.

4-462. Lubrication requirements to be accomplished

during repairs actions are indicated in Chapter 4, Section

d. Replace broken or distorted springs.

IV, Reassembly and Alinement, as appropriate. For gener-

al lubrication information on the towing tractor, refer to

e. Replace worn brake linings.

Chapter 3, Section IV. (See figure 3-5.)

f. Turn brake drum to remove deep scores.

4-463. TESTING.

g. Replace gears if teeth are cracked, missing or worn.

4-464. No specific tests or calibrations are required prior

to component reassembly. For component acceptability

h. Replace nonrepairable parts.

criteria, refer to Chapter 4, Section II, Checkout and

Analysis.

i. Reassemble in accordance with paragraph 4-612.

SECTION IV REASSEMBLY AND ALINEMENT

a. Install two channels (32) and two glasses (31) in

4-465. GENERAL.

shell (35). Insert two channels (34) and two glasses (33).

4-466. This section contains instructions for reassembly

Install channel (30) and plexiglass (29). Install two chan-

a n d installation of the components removed and

nels (28) and two glasses (27).

disassembled to facilitate repair. When necessary, aline-

ment procedures, which are to be accomplished during

b. Install weather stripping (24, 25, and 26) and insert

reassembly, are specified. Lubrication required during

two glasses (23). Insert weather strip (22) in channel (18).

reassembly is included in reassembly procedures.

Secure channel (18) to cab with three screws (19),

washers (20), and nuts (21). Install finger lift (17) on

glasses (23).

4-467. UPPER CAB ASSEMBLY.

c. Secure bracket (13) to cab with screw (14), washer

4-468. REASSEMBLY. See figure 4-3 and reassemble

(15) and nut (16). Attach mirror (12) to bracket (13)

the upper half cab as follows:

with nut (16) and washer.

4-110